Figure 1.

Postnatal expression of antimicrobial peptides in IECs. Quantitative mRNA expression analysis for the indicated antimicrobial peptides and the peptide-processing enzyme MMP7 in primary IECs isolated from the small intestinal tissue of fetal, 6- and 24-h-, and 3-, 6-, 14-, 21-, and 28-d-old mice. Occludin and Zo-1 are involved in the formation of epithelial tight junction and were included as controls. Values represent the mean ± SD of gene expression determined in total IECs from three individual mice and indicate the target/housekeeping (Hprt1) gene expression ratio.